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Re: [Qemu-devel] [Bug 1192344] [NEW] qemu crashes on unaligned extended
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [Bug 1192344] [NEW] qemu crashes on unaligned extended disk reads |
Date: |
Wed, 19 Jun 2013 11:01:30 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, Jun 18, 2013 at 09:23:31PM -0000, Andrew McGowen wrote:
> When performing a BIOS extended disk read (INT 13H, AH=0x42), if the
> offset of the buffer destination in the DAP (disk address packet) is not
> dword-aligned (i.e. a multiple of 4), SeaBIOS attempts to execute code
> at non-mapped address 0xb4f53, causing QEMU to crash. I imagine it's a
> bug in the BIOS code, but it does cause QEMU to crash.
Can you post details on the "crash"? What is the error message?
Stefan
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